How to display messages in Eclipse console through printing?

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To display messages in Eclipse console through printing, you can use the System.out.println() method. Here's an example:

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello World!");
    }
}

When you run this program, "Hello World!" will be printed to the console. You can use this method to print any string or variable value to the console.